Best IT Security Software for Windows

Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required.

SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.

If you’ve ever dealt with slow VPNs, or clunky ZTNA agents that degrade app performance, you’re not alone. Many IT teams are stuck balancing security with usability—and often end up sacrificing both. Here is a different approach. The high-performance ZTNA service that is part of a personal SASE solution from Cloudbrink can upgrade or replace traditional VPNs while fixing the performance and complexity that come from other vendors in the ZTNA and SASE space. Built as a software-only service, Cloudbrink delivers sub-20ms latency and 1Gbps+ speeds per user using dynamically deployed FAST edges and a proprietary protocol that recovers packet loss before it impacts the app. Security isn’t bolted on—it’s built in. With mutual TLS 1.3, short-lived certs, and no exposed IPs, Cloudbrink provides real zero trust without making users suffer through poor connections or overloaded POPs. If you’ve been burned by “next-gen” solutions that still feel like 2008, it might be time for something new.

ADManager Plus is a simple, easy-to-use Windows Active Directory (AD) management and reporting solution that helps AD administrators and help desk technicians in their day-to-day activities. With a centralized and intuitive web-based GUI, the software handles a variety of complex tasks like bulk management of user accounts and other AD objects, delegates role-based access to help desk technicians, and generates an exhaustive list of AD reports, some of which are an essential requirement to satisfy compliance audits. This Active Directory tool also offers mobile AD apps that empower AD admins and technicians to perform important user management tasks, on the move, right from their mobile devices. Create multiple users and groups in Office 365, manage licenses, create Exchange mailboxes, migrate mailboxes, set storage limits, add proxy addresses, and more.

Mailfence is an encrypted email service that offers OpenPGP based end-to-end encryption and digital signatures. Mailfence comes with a plethora of features that boost collaboration without compromising security and convenience. Mailfence documents allow you to safely store and edit documents, you can also share docs with your team with the push of a button. Mailfence calendar will keep your tasks, meetings, and events all in one secure place. Mailfence contacts will store your contacts and it will give you the ability to create mailing lists to maximize efficiency. We designed Mailfence to be a fully interoperable suite, which means you can synchronize Mailfence with most services out there. Mailfence business offers fully customizable whitelabel versions of the Mailfence interface. To put the cherry on top, Mailfence donates 15% of revenues of PRO subscriptions to IFF and EDRI to bolster the fight for Online privacy.

The Business Hub is an integrated, cloud-based security platform for businesses and IT service providers to manage all Avast Business solutions deployed in their networks. It provides real-time visibility of threats, comprehensive reporting, and management capabilities, all from a single pane of glass. Formerly known as CloudCare, the Business Hub is an easy-to-use cloud security platform with a refreshing new UI.

Spike brings your entire workspace into your Inbox: email, chat, calendar, calls, team collaboration, tasks — to one powerful Inbox. Everything you need to get your work done is in a single feed, so you can finally give the app-switching a rest. Spike’s conversational email fuses traditional email with instant messaging — eliminating cluttered email threads. With real-time conversations and live collaboration, have better interactions and a more human communication experience. Spike is available on iOS, Android, Mac, Windows & Web.

Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!

Mattermost is a flexible, open source messaging platform that enables secure team collaboration. Build intuitive workflows and collaborate across large teams without worrying about security or data privacy. Get up and running quickly with hundreds of existing integrations, or build out custom workflows that scale to tens of thousands of concurrent users. Many of the world’s leading privacy-conscious enterprises work better with Mattermost by connecting people, tools, and automation to increase collaboration. DevOps teams use Mattermost to power collaboration at every stage of the DevOps lifecycle. Mattermost unifies people, tools, data, and automations to help your team increase innovation and agility. Mattermost is an open source Slack alternative. It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Use the features you like (file sharing, real-time group chat and webhooks—to name a few) and access the source code.

Routee is an intelligent omnichannel communication platform (CPaaS) offering advanced Web and API automation for all industries worldwide. Powered by AMD Telecom’s robust infrastructure, Routee's services enable businesses to optimize their marketing & business processes. -SMS Marketing: tailor-made messages based on customers' individual preferences -Email Marketing: personalized newsletters & email campaigns based on an audience's behavioral data -Transactional Email: automated emails to customers on important data regarding their transactions -Marketing Automation: rich forms & customer data capture, automation of repetitive marketing tasks, and tracking of marketing campaigns -Two Factor Authentication: a second layer of security with fallback through SMS, Voice, Viber & Missed Call -Cloud IVR: multilingual capabilities, turning speech into text, & text to human-sounding speech -Push Notification: personalized web & mobile push notifications, based on segmentation and user

Tuta offers a highly secure, encrypted email, calendar, and contacts service designed to give users complete control over their data. With end-to-end encryption powered by quantum-safe cryptography, Tuta ensures that all your communications are private and safe from surveillance. The platform is easy to use, supports mobile apps for Android and iOS, and is ad-free, offering a seamless experience across multiple devices. Tuta is committed to using renewable energy to power its servers, ensuring privacy while contributing to a greener future.

Secure, enterprise-style email, calendar & collaboration without the high cost. Kerio Connect delivers all the features and functionality for collaboration and messaging solution without the complexity and high price tag of other systems. Email is integrated with shared calendars and scheduling, contacts management, tasks, notes, shared and public folders, and instant messaging. Synchronize messages by direct push to your choice of mobile device via Microsoft ActiveSync. Instant Messaging is XMPP-compatible and can be used from various 3rd party chat/IM applications on desktop and mobile phones. You can install Kerio Connect in 10 minutes and users can be up and running in just 10 minutes more. Kerio Connect can be deployed on-premises or in partner-hosted cloud environments. Deploy for users on Mac, Windows, or Linux; plus full support for Outlook (Windows and Mac) and many other IMAP or POP compliant email clients.

Manage Microsoft 365 or Google Workspace email signatures in one place with Xink's powerful web portal - built on a decade of experience with email signature management. Get consistent, branded and up-to-date signatures for all employees across devices, departments, and geography. Create customized and targeted email signature marketing banners below the contact details to share updates, achievements, values, promote content and much more! All with clickable call-to-actions to help you drive traffic and interest. With role-based login, the marketing or communications department can easily manage it. After the initial setup (45 min), IT has no workload. Safely hosted at ISO 27001-certified data centers (Microsoft Azure). This ensures the best, most secure data storage available – under all laws and regulations, including GDPR.

Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.

Keep your people safe, informed and productive Communicate effectively within your organization with our major incident, mass notification and planned maintenance solution. Keep your team safe with time-sensitive communication updates Manage major incidents, disasters, business continuity events, cyber incidents and other emergencies with instant notifications, preventing potentially damaging events from escalating. The best tool for efficient and flexible communication in your business Choose Klaxon to improve the way you communicate Multiple notification channels Using our self-service interface, recipients can choose how they receive major incident notifications — through email, SMS, Voice/Telephone, Smartphone App, Microsoft Teams, Skype for Business and more. Two-way communications. Customizable two-way communications across all devices allows recipients to let you know if they've been affected, mark as safe and more. Efficient incident management.

Keep the carrier, Lose the headache. At LINQ, we understand that managing mobile devices and telecom services can be complex, costly, and time-consuming. That’s why we’ve reimagined mobile device management (MDM) to prioritize what truly matters to businesses—simplicity, cost efficiency, and exceptional service. Choosing LINQ means opting for a partner that understands the importance of both technology and service. Our approach is not just about managing devices—it’s about enhancing your operational efficiencies, reducing costs, and improving employee satisfaction through superior mobile device management. Guaranteed Savings, Cost-Effective without Compromise We’re so confident in our ability to reduce your mobile management costs that we offer guaranteed savings as part of our service promise. By optimizing your mobile fleets and reducing unnecessary expenditures, we ensure that LINQ not only meets but exceeds the value offered by traditional cost-per-line metrics.

PryvateNow is a comprehensive communication platform that encrypts and secures voice and video calls, instant messages, emails, and conference calls, both on and off the network. It offers solutions tailored for small and medium-sized enterprises, corporate entities, and large enterprises, ensuring full control over communications and data. Key features include Post-Quantum ZRTP encryption for world-leading data security, built-in auditing and compliance aligning with MiFID II, HIPAA, and GDPR, and white-labeled OEM versions of Pryvate Closed User Groups (CUG) available. The platform also provides a Secure Integration Kit for VoIP, allowing providers to integrate Pryvate’s secure communication suite into their existing platforms seamlessly. PryvateNow's technology encompasses encrypted voice and video calls, secure email, file transfer and storage, and secure voice and video conference calls.

When it comes to IoT connectivity, you need stable, blazing-fast connections you can trust. MobileWare inspires forward-thinking customer connectivity with simple-to-deploy and easily managed mobile solutions. At MobileWare, we provide advanced end-to-end connectivity and IoT solutions for enterprises. We use industry-leading IoT connectivity technologies to support your business’ mobility, wireline, IoT, and security. Our unique MobileWare Single SIM™ simply and securely connects all endpoints between your customers around the world. When it comes to global IoT connectivity, you need a network that keeps your business connected in the wildest of weather or the most remote locations. And this is why MobileWare exists—to give your business a truly global IoT network connectivity that covers different parts of the earth. Bring your products and services to the market faster, using our secure, scalable mobile IoT connectivity.

The only office rule is, there is no office. Business email, TeamChat for project teamwork, real-time office document collaboration and online meetings. All in our secure cloud and for half the usual cost. Chat in teams organized around projects, upload files, mention coworkers, comment on posted emails, pin important posts. Integration with email enables sharing received messages directly to TeamChat room for colleagues‘ attention. Skyrocket your office work effectivity with Desktop Client and Desktop Office documents on Windows as well as Linux devices. Get the complete Suite, or choose only the app you need.

For individual workstations, freelancers or smaller installations, NCP Entry Clients offer a wide range of technical features and offer much more than a standard VPN. Our Solution Finder will help you find the right NCP product for your organization. No matter what hardware you use, whether you are looking for a solution for use in your own company or as a partner for your customers, for a few employees or large installations, we will guide you to the right product in just a few steps. With 30 years of experience in remote access environments, NCP is an excellent choice for a complete VPN solution that meets the needs of users, IT administrators and management. NCP’s remote access solutions are fully-automated, highly secure and cost efficient covering important benefits.